Element block pseudo-class :active generated with background transition box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) margin 0px z-index auto box-shadow 1px 1px 1px rgba(0,0,0,0.3) height auto position static font-size 16px cursor default font-weight normal border-radius border 0px rgba(0,0,0,1) solid transform width 160px line-height 1 float none display block padding 20px overflow hidden